FNUS75 KBOI 291523
FWSBOI

SPOT FORECAST FOR NEEDLES...PAYETTE NF
NATIONAL WEATHER SERVICE BOISE ID
923 AM MDT SAT AUG 29 2009

FORECAST IS BASED ON REQUEST TIME OF 0856 MDT ON AUGUST 29.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...SLIGHTLY COOLER TODAY WITH SCATTERED SHOWERS AND THUNDERSTORMS...
...MUCH COOLER SUNDAY AND MONDAY WITH WETTING RAIN...

.DISCUSSION...
BRIEF CLEARING THROUGH NOON TODAY WILL ALLOW THE ATMOSPHERE TO DESTABILIZE
THIS AFTERNOON AS AN UPPER LEVEL LOW PRESSURE SYSTEM APPROACHES FROM
THE NORTHWEST. SHOWERS AND THUNDERSTORMS MAY BECOME LOCALLY HEAVY AFTER
1500 HOURS THIS AFTERNOON AS THE LOW NEARS. BY TOMORROW MORNING THIS FEATURE
WILL BE POSITIONED DIRECTLY OVER THE DISTRICT FOR A WETTING RAIN AND MUCH
COOLER TEMPERATURES. UP TO HALF AN INCH OF RAIN IS POSSIBLE BETWEEN 1500 HOURS
TODAY AND SUNSET MONDAY EVENING.


.REST OF TODAY...

SKY/WEATHER.........PARTLY SUNNY. ISOLATED SHOWERS THROUGH LATE
                    MORNING...THEN SCATTERED SHOWERS AND
                    THUNDERSTORMS THIS AFTERNOON...ESPECIALLY AFTER 1500 HOURS.
MIN HUMIDITY........24 TO 28 PERCENT.
WIND - EYE LEVEL....UPSLOPE EAST 3 TO 6 MPH.
HAINES INDEX........3 VERY LOW.
MIXING HEIGHT.......4500 FT AGL.
TRANSPORT WIND......WEST AROUND 10 MPH.
VENTILATION INDEX...450 FAIR.
MAX TEMPERATURE.....67 TO 70.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF SHOWERS AND
                    THUNDERSTORMS IN THE EVENING...THEN SHOWERS AND
                    A SLIGHT CHANCE OF THUNDERSTORMS AFTER
                    MIDNIGHT.
MIN TEMPERATURE.....45.
MAX HUMIDITY........95 PERCENT.
WIND - EYE LEVEL....DOWNSLOPE WEST 2 TO 4 MPH.
HAINES INDEX........3 VERY LOW.
MIXING HEIGHT.......700 FT AGL.
TRANSPORT WIND......NORTHEAST AROUND 5 MPH.
VENTILATION INDEX...35 POOR.

.SUNDAY...

SKY/WEATHER.........MOSTLY CLOUDY WITH RAIN SHOWERS.
MAX TEMPERATURE.....55 TO 60.
MIN HUMIDITY........70 PERCENT.
WIND - EYE LEVEL....LIGHT UPSLOPE UP TO 5 MPH.
HAINES INDEX........3 VERY LOW.
MIXING HEIGHT.......5000 FT AGL.
TRANSPORT WIND......NORTHEAST AROUND 5 MPH.
VENTILATION INDEX...250 FAIR.

$$
FORECASTER...DECKER
REQUESTED BY...ANN NICHOLSON
TYPE OF REQUEST...WILDFIRE
.TAG 20090829.NEEDL.01/BOI